The MBTA will activate long-awaited countdown signs on Wednesday telling riders when the next trains will roll into South Station, the start of a pilot program that could be extended to all 51 Red, Orange, and Blue Line stations by the end of the year.
Unlimited access to BostonGlobe.com for only 99 cents for the first 4 weeks.Sign up
Are you a home delivery subscriber?
Get FREE access as part of your print subscriptionStart Here
Contact us for help